英语翻译提前说明不要翻译软件的和google在线翻译的Coherencecodingalsofacilitatestime-multiplexingsuperresolutioninbothspatialandtemporalways.Inspatialcoherencecoding,themutualintensityfunctionoftheillumination

　　英语翻译

　　提前说明不要翻译软件的和google在线翻译的

　　Coherencecodingalsofacilitatestime-multiplexingsuperresolutioninbothspatialandtemporalways.Inspatialcoherencecoding,themutualintensityfunctionoftheilluminationbeamisusedtocodespatialinformationinananalogouswaytotimemultiplexing.Theinformationismultiplexedintimeslotsseparatedbyanintervalofatleastthecoherencetimeoftheilluminationbeam.3Insteadofgeneratingdiversedistributions,eachonewithdifferenttransversecoherencefunctions,thelongitudinalaxisisusedtocodethetransversespatialinformationinthetemporalcoherencecodingbyusingincoherentlightinterferometry.4Afterthat,interferometricimage-planerecordingandadigitalpost-processingstageallowtheneededdecodingtoachievethesuperresolutioneffect.

　　Ananalogyoftiltedbeamshelpsexplaincoherencecoding.Thekeyideaistheequivalencebetweenadiffractiongratingandasetoftiltedbeams(on-axisandoff-axisbeams)withthesamepropagationanglesasthosediffractedbythegrating.Thus,theoff-axisilluminationisusedtodownshiftthehigh-frequencycomponentsoftheobject’sspectrumtolow-frequencyones,allowingitspassagethroughthesystemaperture.Inthatsense,theencodingstageisdefinedasasetofilluminationbeamshavingdifferentincidenceangles(on-axisandoff-axis).Whenthesetiltedbeamsimpingeupontheinputobject,eachofthemproducesafrequencyshiftintheobject’sspectrumaccordingtothebeampropagationangle.Onceagain,adecodingstageandinmostcasesadigitalpost-processingstagerestoreeachdiffractedbandaccordingtoitsoriginaldiffractionangle(seeFig.2).

　　Overthelastfewyears,timemultiplexinghasbeencombinedwithdigitalholographytorecoverthecomplexamplitudedistributionofthesampleundertest.Inparticular,oneinterestingapplicationforthisinterferometricimagingismicroscopy,inwhichsynthetic-aperturegenerationpermitstheextractionofmedium-andhigh-resolutionimagesusinglow-NAmicroscopelenses.5,6Muchlikethegratingandspeckle-patternprocesses,thistechniquealsodirectsoff-axisilluminationontotheobjectandenablesthetransmissionofhigh-frequencybandsthroughalimite